def test_nextQuestion(self):
cat_test = CatTest()
cat_test.name = "short"
cat_test.max_items = 10
cat_test.save()
user = User.objects.create_user("john", "*****@*****.**", "johnpassword")
user.save()
domain = Domain()
domain.name = "Number"
domain.create_date = datetime.datetime(2012, 03, 06)
domain.save()
item_bank = ItemBank()
item_bank.name = "Fractions"
item_bank.topic = "Addition"
item_bank.domain = domain
item_bank.create_date = datetime.datetime(2012, 03, 06)
item_bank.save()
user_item_bank = UserItemBank()
user_item_bank.user = user
user_item_bank.item_bank = item_bank
user_item_bank.save()
ibq = ItemBankQuestion()
ibq.item_bank = item_bank
ibq.save()
user_cat_test = UserCatTest()
user_cat_test.user = user
user_cat_test.item_bank = item_bank
user_cat_test.cat_test = cat_test
user_cat_test.save()
q = user_cat_test.nextQuestion()
# One item in bank, one taken
self.assertEquals(isinstance(q, CatTestItem), True)
q = user_cat_test.nextQuestion()
# One item in bank, try to take another, should return None
self.assertEquals(isinstance(q, CatTestItem), False)
# Add more questions and see if they are repeated
for i in range(1, 11):
ibq = ItemBankQuestion()
ibq.item_bank = item_bank
ibq.save()
for i in range(1, 11):
q = user_cat_test.nextQuestion()
print q.item_bank_question.id
# Add a question of perfect difficulty and see if it is chosen amongst others
for i in range(1, 11):
ibq = ItemBankQuestion()
ibq.item_bank = item_bank
ibq.save()
user_cat_test.difficulty = 2
user_cat_test.stand_err = 0.1
hibq = ItemBankQuestion()
hibq.item_bank = item_bank
hibq.difficulty = 2
hibq.save()
q = user_cat_test.nextQuestion()
self.assertEquals(q.item_bank_question, hibq)
# Make ability different to all questions and make sure one is chosen
user_cat_test.difficulty = 2
user_cat_test.stand_err = 0.1
q = user_cat_test.nextQuestion()
self.assertEquals(isinstance(q, CatTestItem), True)
